摘要
论述了胜利埕岛馆陶组油藏的地质概况,储集层发育、岩性及孔隙结构特征,黏土矿物含量及其变化规律,黏土矿物对碎屑岩孔隙度、渗透率的影响,分析了母岩性质、气候条件、油气形成、沉积环境等地质因素对黏土矿物和储层特征的影响,逐一分析了伊/蒙混层矿物、高岭石、伊利石、绿泥石与储层伤害的关系。该油藏为典型的河流相沉积,矿物和结构成熟度低,非均质性强,胶结疏松,渗透率高,但主要由数量较少的大孔隙提供,石油储量和产量与高岭石含量成反比。与储层伤害有关的黏土矿物主要为蒙脱石,其次为高岭石,伊利石和绿泥石的伤害小。储层对工作液的敏感性,主要为伊/蒙混层矿物产生的水敏,其次为高岭石产生的速敏,绿泥石产生的酸敏小。图1表4参19。
A geological description is given and following knowledges and informations are presented for Chengdao offshore oil reservoir of Guantao formation in Shengli: evolution,lithology,and pore structure of reservoir strata;contents and changes of clay minerals and their influences on clast porosity and permeability;influences on clay minerals and reservoir characteristics of geologic factors such as matrix rock,climate,hydrocarbon collection,and sedimentary environment;relation of reservoir formation damage to i...
出处
《油田化学》
CAS
CSCD
北大核心
2006年第4期369-374,共6页
Oilfield Chemistry
关键词
埕岛油田
馆陶组
碎屑岩
黏土矿物
储层敏感性
储层伤害
Chengdao oil fields
Guantao formation
clast rock
clay minerals
formation sensibilities
formation damage
